131606544 has 40 divisors (see below), whose sum is σ = 342676480. Its totient is φ = 43521408.

The previous prime is 131606539. The next prime is 131606551. The reversal of 131606544 is 445606131.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4699 + ... + 16890.

It is an arithmetic number, because the mean of its divisors is an integer number (8566912).

Almost surely, 2^131606544 is an apocalyptic number.

It is an amenable number.

131606544 is an abundant number, since it is smaller than the sum of its proper divisors (211069936).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131606544 is a wasteful number, since it uses less digits than its factorization.

131606544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21727 (or 21721 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 131606544 is about 11471.9895397442. The cubic root of 131606544 is about 508.6579401467.

The spelling of 131606544 in words is "one hundred thirty-one million, six hundred six thousand, five hundred forty-four".